user.exe: Implement SetSystemTimer() using SetTimer().

dlls/user.exe16/message.c

@@ -1292,6 +1292,11 @@ LRESULT WINPROC_CallProc32ATo16( winproc_callback16_t callback, HWND hwnd, UINT
         lParam = MAKELPARAM( 0, convert_handle_32_to_16( lParam, GMEM_DDESHARE ));
         ret = callback( HWND_16(hwnd), msg, wParam, lParam, result, arg );
         break; /* FIXME don't know how to free allocated memory (handle) !! */
+    case WM_TIMER:
+        if (wParam & SYSTEM_TIMER_FLAG)
+            msg = WM_SYSTIMER;
+        ret = callback( HWND_16(hwnd), msg, wParam, lParam, result, arg );
+        break;
     case SBM_SETRANGE:
         ret = callback( HWND_16(hwnd), SBM_SETRANGE16, 0, MAKELPARAM(wParam, lParam), result, arg );
         break;

dlls/user.exe16/user_private.h

@@ -95,6 +95,8 @@ extern void call_WH_CALLWNDPROC_hook( HWND16 hwnd, UINT16 msg, WPARAM16 wp, LPAR
 
 #define WM_SYSTIMER 0x0118
 
+#define SYSTEM_TIMER_FLAG 0x10000
+
 /* Dialog info structure (must match the user32 one) */
 typedef struct tagDIALOGINFO
 {

dlls/user.exe16/window.c

@@ -111,7 +111,7 @@ UINT16 WINAPI SetTimer16( HWND16 hwnd, UINT16 id, UINT16 timeout, TIMERPROC16 pr
 UINT16 WINAPI SetSystemTimer16( HWND16 hwnd, UINT16 id, UINT16 timeout, TIMERPROC16 proc )
 {
     TIMERPROC proc32 = (TIMERPROC)WINPROC_AllocProc16( (WNDPROC16)proc );
-    return SetSystemTimer( WIN_Handle32(hwnd), id, timeout, proc32 );
+    return SetTimer( WIN_Handle32(hwnd), (UINT_PTR)id | SYSTEM_TIMER_FLAG, timeout, proc32 );
 }
 
 
@@ -1087,7 +1087,7 @@ void WINAPI SwitchToThisWindow16( HWND16 hwnd, BOOL16 restore )
  */
 BOOL16 WINAPI KillSystemTimer16( HWND16 hwnd, UINT16 id )
 {
-    return KillSystemTimer( WIN_Handle32(hwnd), id );
+    return KillTimer( WIN_Handle32(hwnd), (UINT_PTR)id | SYSTEM_TIMER_FLAG );
 }